Oxygen Behavior in High Temperature Plasma and its Applications to Hydrocarbon Fuels
| Autor: | Han S. Uhm, Joo Young Lee, Sang G. Woo, Chang H. Choi, Dong J. Kim |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
inorganic chemicals
010302 applied physics chemistry.chemical_classification Materials science Hydrogen Analytical chemistry General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Oxygen Methane Dissociation (chemistry) chemistry.chemical_compound Hydrocarbon chemistry 0103 physical sciences Molecule 0210 nano-technology Carbon monoxide Syngas |
| Zdroj: | Journal of the Korean Physical Society. 75:917-923 |
| ISSN: | 1976-8524 0374-4884 |
| DOI: | 10.3938/jkps.75.917 |
| Popis: | Oxygen molecules breakdown to atoms by impact dissociation of electrons in a microwave oxygen torch. Typical atom density of oxygen in a microwave torch is a few times of 1018/cm3 produced within millisecond time scale. Dwelling time of an oxygen fluid element in a discharge tube is longer than 10 milliseconds, which is much longer than the atom production time. The oxidation coefficient of hydrocarbon fuel in oxygen atoms is usually about one million times faster than that in oxygen molecules. As an example of applications, oxygen atoms are applied to dimethyl ether, which is relatively a large molecular structure. The initial breakdown species of DME molecules in a high-temperature reaction chamber are hydrogen, carbon monoxide and methane, which is also breakdown to CO and H2 by oxygen atoms. Abundance of water may be generated in a reaction chamber of relatively low-temperature lower than Tg = 1500K, hindering an efficient production of synthetic gas. DME disintegration in a hot chamber by a microwave oxygen torch is experimentally observed. Experimental observation is somewhat agreeing with theoretical predictions. |
| Databáze: | OpenAIRE |
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